Portable TSP and PSP composite excitation light source device

Abstract

The invention discloses a TSP and PSP composite excitation light source device, which comprises a light source host, which is based on a light recovery scheme of free-form surface optical design, adopts a dichroscope to mix light rays emitted by two light source modules with different wavelengths, and outputs light signals suitable for different wavelengths of TSP and PSP at the same time; the optical transmission module is used for coupling the optical signals with different wavelengths mixed by the dichroscope into a solid-state bundled optical fiber to transmit the optical signals; the light emitting module is used for adopting a multi-lens group structure to carry out light distribution on the light rays at the emitting end of the solid-state bundled optical fiber again, so that the adaptation of different optical windows is met, and the light rays are concentrated and the light intensity is enhanced; and the light emitting angle and the effective light spot range can be controlled. The optical structure of the light source is more compact, convenience is provided for simultaneous measurement of the TSP technology and the PSP technology, the light source can be flexibly applied to various complex experiment environments, and the light emitting stability and uniformity of the light source are effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of aerospace aerodynamics industry detection, and in particular relates to a portable TSP and PSP composite excitation light source device. Background Art

[0002] TSP (Temperature-Sensitive Paint) and PSP (Pressure-Sensitive Paint) are respectively an optical temperature measurement technology and an optical pressure measurement technology with the advantages of non-contact, high spatial resolution and full-field measurement. When TSP / PSP is irradiated with excitation light of a specific wavelength, it absorbs the energy of the excitation light and emits emission light with a wavelength different from the excitation light. This process is the "photoluminescence" of TSP / PSP. The measurement principle of TSP is based on the thermal quenching effect in the photoluminescence process, and the intensity of its radiated light decreases with increasing temperature. Similarly, the measurement principle of PSP is based on the oxygen quenching effect in the photoluminescence process. The PSP signal is affected by the air pressure in the surrounding environment, resulting in the radiated light intensity being inversely proportional to the surface pressure. The development of TSP / PSP technology has great application prospects for complex flow phenomena such as transition, separation and shock wave-boundary layer interference that are common in high-speed flows, and can meet the growing demand for refined measurements.

[0003] The excitation light source is one of the essential and important components in the application of TSP / PSP technology. It will have a great impact on the measurement results of TSP / PSP technology, so it is very important to choose a suitable excitation light source. Since TSP / PSP technology has high requirements for excitation light sources, the excitation light sources currently available on the market for TSP / PSP fields cannot meet the needs of simultaneous measurement of TSP / PSP technology; and the currently applicable excitation light sources are either large in overall structure with a good heat dissipation system, so they are limited by the size of the test space, or the heat dissipation system is not well solved when the overall size is small, so the light source power is too small and the uniformity of the light source cannot be guaranteed, thus affecting the test results. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and propose a portable TSP and PSP composite excitation light source device.

[0005] In view of this, the present invention proposes a portable TSP and PSP composite excitation light source device, including: a light source host, a light transmission module and a light output module, wherein:

[0006] The light source host, based on a light recycling solution of free-form surface optical design, uses a dichroic mirror to mix the light emitted by two light source modules with different wavelengths, and outputs light signals with different wavelengths suitable for TSP and / or PSP;

[0007] The optical transmission module is used to couple the optical signals of different wavelengths mixed by the dichroic mirror into the solid-state bundled optical fiber to transmit the optical signals;

[0008] The light output module is used to use a multi-lens group structure to re-distribute the light at the output end of the bundled optical fiber to meet the adaptation of different optical windows, and to concentrate the light and enhance the light intensity; it is also used to provide control over the light output angle and the effective spot range.

[0009] Preferably, the two light source modules with different wavelengths are fixed perpendicularly to each other in the optical cavity. A dichroic mirror is also arranged in the optical cavity, forming an angle of 45° with the two light source modules. The two different wavelengths are 395nm and 460nm respectively. The output modes of the light source host include: outputting an optical signal applicable to TSP, outputting an optical signal applicable to PSP, and simultaneously outputting optical signals applicable to TSP and PSP.

[0010] Preferably, each of the light source modules adopts an LED module, and uses a fly-eye lens to reshape the separated LED lamp cores into an integrated light source and realize the collimation of the light beam.

[0011] Preferably, the LED module adopts a hexagonal seven-unit module arrangement, including seven unit modules, each of which is a regular hexagon, and lamp beads can be placed at the vertices and center of the regular hexagon.

[0012] Preferably, the light source module comprises: a heat sink and a fan, and the heat sink is a pin-fin aluminum profile heat sink.

[0013] Preferably, a thin layer of thermally conductive silicone with uniform thickness is applied to the bottom of the radiator.

[0014] Preferably, the light source host also includes an electronic module, which adopts a combination of a high-power linear constant current source design and a hardware control system of multi-stage feedback loop control to achieve stable output of the optical signal and solve the loop oscillation problem.

[0015] Preferably, the focal length f of the lens of the multi-lens group of the light output module satisfies the following formula:

[0016]

[0017] Where n is the refractive index, r 1 is the convex radius of the object space, r 2 is the convex radius of the image side.

[0018] Preferably, the light output module meets the adaptation requirements of an optical window with a minimum diameter Φ of 40 mm, the effective light spot has a variation range of a diameter Φ of 100 mm to 250 mm, and the light spot uniformity on the receiving surface is above 85%.

[0019] Preferably, the device further comprises a light-emitting connector for realizing connection between the device and an external device.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] 1. Due to the difference in wavelengths of the excitation light sources used in the TSP / PSP technology, when the TSP and PSP technologies are simultaneously applied for experimental measurement, a single-wavelength light source is difficult to meet the experimental requirements, and two single-wavelength light sources are easily limited by the experimental space. The design of the excitation light source of the present invention is to fix two light source modules with different wavelengths perpendicularly to each other in the optical cavity inside the same light source host, and mix the light emitted by the two light source modules with different wavelengths through the dichroic mirror in the optical cavity. Both light source modules adopt the method of compound eye lens integration to integrate the separated LED chips into an integrated light source, so as to achieve the effect of saving the light path, make the optical structure of the light source more compact, and provide convenience for the simultaneous measurement of TSP / PSP technology;

[0022] 2. Since the TSP / PSP technology is easily affected by the problems of insufficient light incident amount, low light source energy density, and too small light irradiation surface caused by the small light window of the wind tunnel equipment and the large surface area of ​​the experimental model during simultaneous measurement, the light output module of the present invention adopts a multi-lens group structure to re-distribute the light at the optical fiber output end to optimize the light spot size and uniformity of the system, ensuring that it can be adapted to the optical window with a minimum diameter of Φ of 40 mm, thereby meeting the use requirements of a small light window and a large measurement range, and can be flexibly applied in various complex experimental environments;

[0023] 3. The internal cooling objects of the light source host of the present invention are structurally arranged according to an ideal air flow channel, and its heat dissipation module is composed of a 60-pin sheet aluminum profile radiator and a high-speed low-decibel fan, which effectively saves space. The portable TSP / PSP composite excitation light source provided by the present invention can continuously and stably dissipate heat under the conditions of multi-optical component transmission and compact optical structure, thereby improving the light output stability and uniformity of the light source. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the TSP / PSP composite excitation light source device of the present invention;

[0025] Figure 2 It is the overall structural layout diagram of the light source host;

[0026] Figure 3 It is a schematic diagram of the arrangement of the wicks inside the light source;

[0027] FIG4(a) is a schematic diagram of a 395nm / 460nm optical coupling light path simulation model, FIG4(b) is a two-dimensional distribution diagram of irradiance in a circular area, FIG4(c) is a one-dimensional distribution diagram of irradiance along the Y-axis, FIG4(d) is a one-dimensional distribution diagram of irradiance along the X-axis, FIG4(e) is a color bar corresponding to the irradiance value, and FIG4(f) is a data analysis result during the optical simulation process;

[0028] FIG5 is a schematic diagram of an optical simulation model, wherein FIG5(a) is a schematic diagram of the overall optical simulation model, and FIG5(b) is a schematic diagram of a light output module model of a multi-lens group structure;

[0029] FIG6 is a simulation result in a circular area with a diameter of 250 mm, wherein FIG6(a) is a two-dimensional distribution diagram of irradiance in the circular area, FIG6(b) is a one-dimensional distribution diagram of irradiance along the Y-axis, FIG6(c) is a one-dimensional distribution diagram of irradiance along the X-axis, and FIG6(d) is a color bar corresponding to the irradiance value;

[0030] FIG7 is a simulation result in a circular area with a diameter of 180 mm, wherein FIG7(a) is a two-dimensional distribution diagram of irradiance in the circular area, FIG7(b) is a one-dimensional distribution diagram of irradiance along the Y-axis direction, FIG7(c) is a one-dimensional distribution diagram of irradiance along the X-axis direction, and FIG7(d) is a color bar corresponding to the irradiance value;

[0031] FIG8 is a simulation result in a circular area with a diameter of 100 mm, wherein FIG8(a) is a two-dimensional distribution diagram of irradiance in the circular area, FIG8(b) is a one-dimensional distribution diagram of irradiance along the Y-axis direction, FIG8(c) is a one-dimensional distribution diagram of irradiance along the X-axis direction, and FIG8(d) is a color bar corresponding to the irradiance value;

[0032] Fig. 9 It is a schematic diagram of the thermal simulation model of a single channel light source;

[0033] FIG10 is a thermal simulation result of a single channel light source, where FIG10(a) is the three-dimensional temperature distribution of the model, FIG10(b) is the two-dimensional temperature distribution contour map of the upper section of the model channel, and FIG10(c) is the two-dimensional temperature distribution contour map of the lower section of the model channel. DETAILED DESCRIPTION

[0034] The purpose of the present invention is to optimize the layout of the optical path system, improve the stability and uniformity of the light source, enhance the efficiency of the heat dissipation system, adapt to the problems of small light window and large measurement range, and propose a portable TSP / PSP composite light source, including: a light source host, an optical transmission module and a light output module.

[0035] The light source host, based on a light recycling solution of free-form surface optical design, uses a dichroic mirror to mix the light emitted by two light source modules with different wavelengths, and outputs light signals of different wavelengths suitable for TSP and / or PSP; that is, it has three output modes: TSP, PSP, and TSP and PSP simultaneously output light signals of three wavelengths.

[0036] The optical transmission module is used to couple the optical signals of different wavelengths mixed by the dichroic mirror into the solid-state bundled optical fiber to transmit the optical signals over long distances, with high efficiency and high uniformity;

[0037] The light output module is used to use a multi-lens group structure to re-distribute the light at the output end of the bundled optical fiber to meet the adaptation of different optical windows, concentrate the light and enhance the light intensity; it is also used to provide control over the angle of light output and the effective spot range.

[0038] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0039] Example 1

[0040] like Figure 1 As shown, Example 1 of the present invention proposes a portable TSP / PSP composite excitation light source.

[0041] The overall structure of the light source mainly includes the light source host, optical transmission module, light output module and light output connector; the structure of the light source host includes multiple parts such as the shell, optical cavity, electronic module, light source module, etc. The optical cavity can increase the intensity of light on the one hand, and on the other hand, due to the extremely high requirements of TSP / PSP technology on the specific wavelength light source during measurement, the optical cavity can make the output light frequency relatively single and stable, ensuring the monochromaticity and coherence of the light output from the light source; the electronic module can control the opening and closing of the light source, adjust the power of the light source, and ensure that the output light intensity, frequency and other parameters remain stable; the light source module is the core part of the light source host, including collimating lens group, light source, heat sink, fan and other components. Its main function is to generate high-intensity and coherent laser through the principle of stimulated radiation. The heat sink and fan can immediately dissipate the large amount of heat generated during the continuous emission of the light source, thereby ensuring that the light source host is stable and works normally within the appropriate temperature range.

[0042] Optical transmission modules are mainly used for the transmission of optical signals.

[0043] On the one hand, the light output module can focus the light to make it more concentrated, thereby enhancing the light intensity of the target area to meet the extremely high requirements of TSP / PSP technology for light intensity; on the other hand, it can control the angle and range of the light output so that the light covers a wider or narrower area, thereby solving the problem that TSP / PSP technology is affected by the size of the spatial range during measurement.

[0044] Light connectors are mainly used to connect light source systems with external devices to ensure that light can be transmitted effectively and accurately.

[0045] Light source host part, such as Figure 2 As shown, two light source modules A and B with different wavelengths are used, and the light source modules A and B are coupled through a dichroic mirror. It mainly includes a housing, an optical cavity, an electronic module, a light source module, etc. The light source module is composed of a collimating lens group, a light source, a heat sink, a fan, etc. The light source modules A and B are fixed perpendicularly to the optical cavity. The dichroic mirror is placed in the optical cavity, at an angle of 45° with the light source module AB. The optical cavity is fixed to the housing by screws;

[0046] The light source module adopts a light recycling solution based on free-form surface optical design to improve the energy density of the light source;

[0047] Both light source modules use LED modules, and the compound eye lens integration method is used to integrate the separated LED cores into a high-power integrated light source and realize the collimation of the light beam;

[0048] The LED light source layout adopts a hexagonal seven-unit module arrangement, such as Figure 3 As shown, a regular hexagon is used as the basic unit. Lamp beads can be placed at the vertex and center of each regular hexagon. It is composed of seven such units. Compared with the square arrangement, this arrangement has a higher space utilization rate, can make the light source structure more compact, and effectively improve the luminous intensity per unit area. At the same time, it also helps to achieve a more uniform light distribution and heat dissipation, thereby achieving high luminous flux requirements;

[0049] As shown in Figure 4(a), the optical transmission module mainly includes an optical fiber transmission system, which is responsible for transmitting optical signals. A special two-way beam splitter with the functions of transmitting long-wavelength light and reflecting short-wavelength light couples the LEDs of different wavelengths in the two light source modules into the effectively arranged solid-state bundled optical fibers, which can not only improve the high-efficiency transmission of light, but also achieve high-uniform light output;

[0050] The light output module mainly includes the light output lens, etc., and adopts a multi-lens group structure to re-distribute the light at the output end of the bundled optical fiber to meet the adaptation of the small rectangular optical window and the circular optical window, while achieving the improvement of the effective spot coverage and light uniformity. The multi-lens group structure enables the light output module to focus the light on the one hand, making the light more concentrated, thereby enhancing the light intensity of the target area to meet the extremely high requirements of the TSP / PSP technology for light intensity, and on the other hand, to control the angle and range of the light output so that the light covers a wider or narrower area, thereby solving the problem that the TSP / PSP technology is affected by the size of the spatial range during measurement;

[0051] Light connectors are often designed based on actual structural dimensions, and are mainly used to connect the entire light source system with external equipment to ensure that the optical signal can be transmitted effectively and accurately.

[0052] The electronic module adopts a combination of high-power linear constant current source design and multi-level feedback loop control hardware control system to achieve high stability output of the light source system and solve the loop oscillation problem caused by multi-level control;

[0053] The heat dissipation module of the host is composed of a pin-type aluminum profile heat sink and a high-speed low-power fan, which can save space to the maximum extent while achieving timely and uniform heat dissipation, protecting the light source system to work continuously and stably;

[0054] A thin layer of thermally conductive silicone with uniform thickness is applied to the bottom of the radiator to prevent thermal blockage between the radiator and the PCB.

[0055] Example 2

[0056] Embodiment 2 of the present invention provides a design method for a TSP / PSP composite excitation light source device, comprising:

[0057] Step 1) Two light source modules use LED modules with wavelengths of 395nm and 460nm respectively. The modules adopt the existing compound eye lens integration solution to integrate the separated LED chips into an integrated light source;

[0058] Step 2) Based on the consideration of the luminous flux requirements, existing optical materials, the effect of processing accuracy on the loss of light transmission process, LED (395nm, size 1.09mm*1.09mm, luminous flux 4W; 460nm, size 1.5mm*1.2mm, luminous flux 1.6W;) and fiber specifications (NA0.56, φ10mm), Table 1 shows the transmittance parameters in one embodiment:

[0059] Table 1

[0060] Optical components Optical lens Compound eye lens Dichroic Beamsplitter optical fiber Light transmittance 0.95 0.90 0.85 0.40 Design Hexagonal compound eyes Lens distortion 395LED / round optical fiber 460LED / round optical fiber Light transmittance 0.825 0.80 0.78 0.628

[0061] It can be estimated that the number of 395nm LEDs and 460nm LEDs are approximately:

[0062]

[0063] Design LED lamp beads using Figure 3 The array layout of the hexagonal seven-unit module shown;

[0064] Step 3) Using a special two-way beam splitter integration, two different wavelengths of LED light are coupled and transmitted together to the next focusing optical path system, and then coupled into the solid-state bundled optical fiber;

[0065] Step 4) In the optical ray tracing software, the actual model is imported and optical simulation is performed, and the parameters of each material and surface property are set according to the actual processing conditions. As shown in Figure 4(a), it is a 395nm / 460nm optical coupling light path simulation model, Figure 4(b) is a two-dimensional distribution diagram of irradiance in a circular area, Figure 4(c) is a one-dimensional distribution diagram of irradiance along the Y axis, Figure 4(d) is a one-dimensional distribution diagram of irradiance along the X axis, Figure 4(e) is the color bar corresponding to the irradiance value, and Figure 4(f) is the data analysis result during the optical simulation process, including parameters such as the peak value of the error estimation, the number of samples, the total power of the light in the area, and the irradiance.

[0066] From the simulation results in Figure 4, we can see that the luminous flux is 74.775W. Considering the actual conditions such as optical material absorption and interface loss, the light source obtained by the above technical method can meet the design requirements;

[0067] As shown in FIG5 , it is an optical model of a fiber lens, wherein FIG5( a ) is an overall schematic diagram of the optical simulation model, and FIG5( b ) is an optical model of a light output module with a multi-lens group structure;

[0068] Step 5) Use a multi-lens group structure to re-design the light distribution of the optical fiber output end; first determine the initial structure of the lens group, and according to the optical principle, determine the types and arrangement order of the main optical elements that the light at the optical fiber output end passes through, and then perform preliminary parameter setting and optimization. According to the system requirements, set the initial focal length of each lens, and calculate the initial lens curvature radius according to the relationship between the lens focal length and the curvature radius of the formula (1), where f is the lens focal length, n is the refractive index, and r is the initial lens curvature radius. 1 is the convex radius of the object space, r 2 is the convex radius of the image side, for a thin lens r 1 =-r 2 .

[0069]

[0070] Ensure that the light is focused where needed and adjust the lens spacing to optimize the system’s spot size and uniformity;

[0071] Step 6) Use optical design software to perform ray tracing to check the optical performance of the system. Figure 6 is the simulation result in a circular area with a diameter of 250 mm, where Figure 6(a) is a two-dimensional distribution diagram of irradiance in the circular area, Figure 6(b) is a one-dimensional distribution diagram of irradiance along the Y-axis direction, Figure 6(c) is a one-dimensional distribution diagram of irradiance along the X-axis direction, and Figure 6(d) is a color bar corresponding to the irradiance value;

[0072] FIG7 is a simulation result in a circular area with a diameter of 180 mm, wherein FIG7(a) is a two-dimensional distribution diagram of irradiance in the circular area, FIG7(b) is a one-dimensional distribution diagram of irradiance along the Y-axis direction, FIG7(c) is a one-dimensional distribution diagram of irradiance along the X-axis direction, and FIG7(d) is a color bar corresponding to the irradiance value;

[0073] FIG8 is a simulation result in a circular area with a diameter of 100 mm, wherein FIG8(a) is a two-dimensional distribution diagram of irradiance in the circular area, FIG8(b) is a one-dimensional distribution diagram of irradiance along the Y-axis direction, FIG8(c) is a one-dimensional distribution diagram of irradiance along the X-axis direction, and FIG8(d) is a color bar corresponding to the irradiance value;

[0074] From the simulation results in Figures 6, 7 and 8, it can be seen that the optical fiber mirror group meets the requirements of adapting to the optical window with a minimum diameter of Φ40mm, covering the effective spot variation range of Φ100mm to 250mm in the entire focusing range, and the spot uniformity of the receiving surface reaching more than 85%;

[0075] Step 7) The structure of the light source host includes multiple modules, including a housing, an optical cavity, an electronic module, a light source module, etc. The light source module is composed of a collimating lens group, a light source, a heat sink, a fan, etc. The light source modules A and B are fixed perpendicularly to each other in the optical cavity, and the dichroic mirror is placed in the optical cavity at an angle of 45° with the light source module AB. The optical cavity is fixed to the housing by screws;

[0076] Step 8) A pin-type aluminum profile heat sink and a low-power DC fan are used to form the heat dissipation system of the host. The heat sink fits the bottom of the electronic board to fully absorb heat, and then the airflow caused by the rotation of the fan blows the heat away from the air outlets on both sides. The heat dissipation is completed in a reciprocating cycle, ensuring the timeliness and uniformity of heat dissipation;

[0077] Step 9) Apply a uniform layer of thermally conductive silicone to the bottom of the heat sink that contacts the electronic board. The thermal conductivity of the thermally conductive adhesive used is about 13W / (mK) to prevent the air in a small space from forming heat blockage due to the relatively large thermal conductivity of the air.

[0078] Step 10) Fig. 9 As shown, a thermal simulation study was conducted on the light source of each channel, and a 60-pin aluminum heat sink plus a high-speed low-decibel fan was selected for heat dissipation. The thermal simulation results are shown in Figure 10, where Figure 10(a) is the three-dimensional temperature distribution of the model, Figure 10(b) is the two-dimensional temperature distribution contour map of the upper section of the model channel, and Figure 10(c) is the two-dimensional temperature distribution contour map of the lower section of the model channel. The gradual change from yellow to red indicates the change from low to high temperature. We obtained that the junction temperature of the LED light source module is 67.7°C and the shell temperature is less than 45°C. It can be seen that the heat dissipation model has good heat dissipation capabilities.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that any modification or equivalent replacement of the technical solutions of the present invention does not depart from the spirit and scope of the technical solutions of the present invention and should be included in the scope of the claims of the present invention.

Claims

1. A portable TSP and PSP composite excitation light source device, characterized in that: include: Light source host, light transmission module and light output module, among which, The light source host, based on a light recycling solution of free-form surface optical design, uses a dichroic mirror to mix the light emitted by two light source modules with different wavelengths, and outputs light signals with different wavelengths suitable for TSP and / or PSP; The optical transmission module is used to couple the optical signals of different wavelengths mixed by the dichroic mirror into the solid-state bundled optical fiber to transmit the optical signals; The light output module is used to use a multi-lens group structure to re-distribute the light at the output end of the solid-state bundled optical fiber to meet the adaptation of different optical windows, and to concentrate the light and enhance the light intensity; it is also used to provide control over the angle of light output and the effective spot range.

2. The portable TSP and PSP composite excitation light source device according to claim 1, characterized in that: The two light source modules with different wavelengths are fixed perpendicularly to each other in the optical cavity. A dichroic mirror is also arranged in the optical cavity, which forms an angle of 45° with the two light source modules. The two different wavelengths are 395nm and 460nm respectively. The output modes of the light source host include: outputting optical signals applicable to TSP, outputting optical signals applicable to PSP, and simultaneously outputting optical signals applicable to TSP and PSP.

3. The portable TSP and PSP composite excitation light source device according to claim 1, characterized in that: Each of the light source modules adopts an LED module, and uses a compound eye lens to shape the separated LED lamp cores into an integrated light source and realize the collimation of the light beam.

4. The portable TSP and PSP composite excitation light source device according to claim 3, characterized in that: The LED module adopts a hexagonal seven-unit module arrangement, including seven unit modules, each of which is a regular hexagon, and lamp beads can be placed at the vertices and center of the regular hexagon.

5. The portable TSP and PSP composite excitation light source device according to claim 3, characterized in that: The light source module comprises: a radiator and a fan, and the radiator is a pin-type aluminum profile radiator.

6. The portable TSP and PSP composite excitation light source device according to claim 1, characterized in that: A thin layer of thermal conductive silicone with uniform thickness is applied to the bottom of the radiator.

7. The portable TSP and PSP composite excitation light source device according to claim 1, characterized in that: The light source host also includes an electronic module, which adopts a combination of a high-power linear constant current source design and a hardware control system of a multi-level feedback loop control to achieve stable output of optical signals and solve the problem of loop oscillation.

8. The portable TSP and PSP composite excitation light source device according to claim 1, characterized in that: The focal length f of the lens of the multi-lens group of the light output module satisfies the following formula: Among them, n is the refractive index, r1 is the convex radius of the object side, and r2 is the convex radius of the image side.

9. The portable TSP and PSP composite excitation light source device according to claim 8, characterized in that: The light output module meets the adaptation of the optical window with a minimum diameter Φ of 40 mm, the variation range of the effective light spot is Φ of 100 mm to 250 mm, and the uniformity of the light spot on the receiving surface is above 85%.

10. The portable TSP and PSP composite excitation light source device according to claim 1, characterized in that: The device also includes a light-emitting connector for connecting the device to an external device.

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